Gastrointestinal aspirator pump system and method

Abstract From the Canadian patent

Abstract of the Disclosure, The system includes pumps for supplying negative and positive air pressure (with respect to atmospheric air) air to the negative and positive lumens respectively, of a, multilumen tube. The lumens are separated from each other by a partition wall within the tube. The negative air pressure lumen has a plurality of apertures distributed along the outer wall of the end portion of the tube and the positive air pressure lumen has an aperture in the partition wall adjacent each of the aforesaid apertures. The negative air pressure is steadily applied, while the positive air pressure is supplied in periodic pulses. The rate at which air passes into the positive air …